Acme.BookStore.HttpApi.Host/node_modules/undertaker/README.md

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# undertaker

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Task registry that allows composition through `series`/`parallel` methods.

## Usage

```js
var fs = require('fs');
var Undertaker = require('undertaker');

var taker = new Undertaker();

taker.task('task1', function(cb){
  // do things

  cb(); // when everything is done
});

taker.task('task2', function(){
  return fs.createReadStream('./myFile.js')
    .pipe(fs.createWriteStream('./myFile.copy.js'));
});

taker.task('task3', function(){
  return new Promise(function(resolve, reject){
    // do things

    resolve(); // when everything is done
  });
});

taker.task('combined', taker.series('task1', 'task2'));

taker.task('all', taker.parallel('combined', 'task3'));
```

## API

__Task functions can be completed in any of the ways supported by
[`async-done`][async-resolution]__

### `new Undertaker([registryInstance])`

The constructor is used to create a new instance of `Undertaker`. Each instance of
`Undertaker` gets its own instance of a registry. By default, the registry is an
instance of [`undertaker-registry`][undertaker-registry]
but it can be an instance of any other registry that follows the [Custom Registries API][custom-registries].

To use a custom registry, pass a custom registry instance (`new CustomRegistry([options])`) when
instantiating a new `Undertaker` instance. This will use the custom registry instance for that `Undertaker` instance.

### `task([taskName,] fn)`